Answer:
5
Step-by-step explanation:
The geometric mean of 2 numbers a and b is

Hence
The geometric mean of 5 and 10 is

= 
=
=
×
= 5
242.9 . I worked it out on a piece of paper so it might be right .
Because empty set has no element which automatically make it a subset of every set.
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
63% decrease.
0.63•80=50.4kg
80kg-50.4kg=29.6kg
Answer:
C, 108
Step-by-step explanation:
rectangles
8x3 = 24
8x4 = 32
8x5 = 40
triangles
3x4 = 12
you dont really have to divide by 2 since theres two triangles
24+32+40+12 = 108